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diff --git a/tests/bugs/bug-853680.t b/tests/bugs/bug-853680.t
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+#!/bin/bash
+#
+# Bug 853680
+#
+# Test that io-threads least-rate-limit throttling functions as expected. Set
+# a limit, perform a few operations with a least-priority mount and verify
+# said operations take a minimum amount of time according to the limit.
+
+. $(dirname $0)/../include.rc
+
+cleanup;
+
+TEST glusterd
+
+TEST $CLI volume create $V0 $H0:$B0/${V0}1
+TEST $CLI volume start $V0
+
+# set rate limit to 1 operation/sec
+TEST $CLI volume set $V0 performance.least-rate-limit 1
+
+# use client-pid=-1 for least priority mount
+TEST glusterfs --volfile-id=$V0 --volfile-server=$H0 $M0 --client-pid=-1
+
+# create a few files and verify this takes more than a few seconds
+date1=`date +%s`
+TEST touch $M0/file{0..2}
+date2=`date +%s`
+
+optime=$(($date2 - $date1))
+TEST [ $optime -ge 3 ]
+
+TEST umount $M0
+
+TEST $CLI volume stop $V0
+TEST $CLI volume delete $V0
+
+cleanup;